<html>
<head>
    <title>demo</title> 
	 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
	 <link rel="stylesheet" type="text/css" href="ext-4.0/resources/css/ext-all.css">
	 <script type="text/javascript" src="ext-4.0/bootstrap.js"></script>
	 <script type="text/javascript" src="app.js"></script>
</head>
<body>
hello
</body>
</html>